I need a little help with some knowledge of old equipment. I scavenge all my parts, except bearings and belts from old junked farm equipment. I am in need of 90 degree gear box(1:1 or increaser) to transfer the drive from the PTO. Is there a old piece of eguipment out there that has a good heavy one. I was told pull type swather would have this, but most are just open helical gears, no case. Any help would be appreciated before i go on my next scouting mission. Thanks